Hard to tell. It happens to some extent with pretty much all nerd-genre movies, but to differing levels with some of them, especially more recently. The trend has been growing for a few years now, with Rise of Skywalker and Wonder Woman 1984 probably being the biggest discrepancies lately. Honestly, most of the releases we've been getting lately simply have been female-led, so I don't know that it is partially the cause or simply the reflection of an ever-growing trend. Also I believe at play with a movie like Wonder Woman 1984 is the pressure of being one of the first reviews out there. The first film was widely beloved by nearly everyone, including me. Now, we've got the next installment with the same team leading the way still intact, so if an initial critic didn't know what to think of the film afterwards, do they really want to be one of the first out there to bash the movie only to be followed by everyone else praising it? Maybe they end up questioning themselves a bit to the point where it influences their review. This same scenario I believe played out very similarly with Spider-Man 3 as well. Believe it or not, that terrible movie still has a fresh rating on Rotten Tomatoes, which is borderline absurd.